I started a new thread, but in case anyone comes back in here, here's the latest update:

I'm baffled. Fuel pressure holds at about 32psi, but will slowly bleed down to about 28 after 5 mins. I checked spark to all 6 cylinders and it's there. I originally checked 1 cylinder and wasn't getting spark, then read something about unplugging the CPS for 5 minutes, re-plugging, and trying again. Now spark to all 6. So maybe I didn't check it correctly the first time.

UPDATE:
I read somewhere that it might be flooded, so I cranked and cranked at WOT and it eventually started. Made sense since I was cranking all morning checking fuel pressure and for spark.

My concern now is that I didn't see spark initially, unplugged the CPS for 5+ minutes, re-plugged it and then got spark. It's possible I didn't check correctly at first, and I only checked 1 cylinder. But if it was replugging the CPS that worked, could that mean that it is going out? Did it reset something in the PCM?

after letting it run for a minute, it starts normally now. Is there a better brand of CPS? I've read that OEM is no longer available. Locally, I can get Napa, BWD, MasterPro. Summit can get me Standard Motor Products, or Crown Automotive.

I think for the 91 it is still a available from the dealer.
I'd go for napa if it's not jeep. Not sure about the other aftermarket brands, crown is supposed to be good quality but I've had hit and mis from them and omix-ada